Dictionary > Axenic culture

Axenic culture

Definition
noun
A microbial culture that contains only one species, variety, or strain of microorganism
Supplement
Microorganisms can be grown under controlled laboratory conditions in cultures where they are allowed to grow and reproduce. Microorganisms are grown largely for research, taxonomic, and medical purposes. Bacterial cells, for instance, are grown in an agar-based culture in plates (petri dishes) by inoculation and incubation techniques. They can also be grown in liquid culture such as liquid broth where bacterial cells are suspended in it. Eukaryotes can also be grown in cultures given the proper optimum growth conditions. However, the most common eukaryotes grown in cultures are unicellular, such as yeasts. An axenic culture though would be a culture containing only one species, variety, or strain of organisms. There should not be any contaminants present. Microorganisms that are obligate symbionts, though, cannot be grown in axenic cultures.
Axenic cultures can be prepared by picking out a single (individual) cell that would initiate a culture. This technique is useful in growing a specific culture of fungi, algae, and certain metazoan. In bacteria, series of streak plate technique can be used in order to separate microbial population and achieve an isolated colony of cells uncontaminated with other microbes. Other way to achieve axenic cultures is the addition of antibiotics to prevent the growth of certain cells.
Word origin: a- (lack of) + Greek xenikos (foreign), from xenos (stranger)
See also:

Related term(s):

  • bacteria
  • culture


  • You will also like...

    complete-dominance
    Dominance

    This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

    Ploidy
    Polyploidy

    Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

    Genetic engineering
    Genetic Engineering Advantages & Disadvantages

    This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..

    Transpiration
    Water in Plants

    The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

    Freshwater lake ecosystem
    Freshwater Producers and Consumers

    Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

    Consciousness and behavior
    Consciousness and Behavior

    Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

    Related Articles...

    No related articles found

    See all Related Topics